U.S. Route 85 (US 85) is a north–south United States highway that runs for 1,479 miles (2,380 km) in the Mountain - Northern Plains states of the United States. The southern terminus of the route is at the United States-Mexico border in El Paso, Texas, connecting with Mexican Federal Highway 45. The northern terminus is at the United States-Canada border in Fortuna, North Dakota, where the route continues north as Saskatchewan Highway 35. In both the United States and Saskatchewan, Canada the route is known as the CanAm Highway. Sections of US 85 are considered part of the Theodore Roosevelt Expressway.